Proposal of kHz-level polarization switching of undulator radiation with magnetic field modulation at Hefei Advanced Light Facility
Nanrui Yang, Junce Yang, Zhouyu Zhao, Heting Li · 2026
Read Proposal of kHz-level polarization switching of undulator radiation with magnetic field modulation at Hefei Advanced Light Facility by Nanrui Yang, Junce Yang, Zhouyu Zhao, Heting Li (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13549343.txt.
Description
Nanrui Yang and colleagues propose flipping the polarization of synchrotron light thousands of times per second, in a 2026 accelerator physics paper. Their trick is to wiggle a magnetic field. The work targets the planned Hefei Advanced Light Facility. Experiments that probe magnetism in materials need rapid alternation between polarization states, yet mechanically shifting magnet arrays is slow, and workarounds with twin devices are bulky and costly.
The proposal adds electromagnetic coils to the undulator, the magnet array that makes the beam. Wiggling its field directly switches polarization at kilohertz rates. The paper lays out the design against the landscape of existing strategies, from hybrid magnet devices at other facilities to beamline switching schemes that pick between two beams. The authors argue source-level switching promises cleaner, faster results for magnetic spectroscopy at the new site.
Catalog record
| CREATOR | Nanrui Yang, Junce Yang, Zhouyu Zhao, Heting Li |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 21 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |